Question: How does one Convert a Degrees and Minutes
Location to a Degree and Decimal (Decimal Degree) location?

First, remember that we are NOT talking about changing or converting
the WHOLE degree part of a location. So in a reading of 43 51'(min), we
are not going to do anything to the 43 part of this location. It is a
whole degree so there is nothing to convert.

What we are talking about is the part of, or fraction of the location
reading because that can be expressed in two ways:

a) in minutes (1/60 of a degree) ; or
b) in decimal percentages (1/100 of a degree)

Background on converting from minutes to decimal percentage.

1) Each whole degree is comprised of 60 minutes.

2) To convert a minute into decimal percentage just divide the MINUTE
number by 60:

Question:
How does one Convert a Degree and Decimal (Decimal Degree) location to
a Degrees and Minutes Location?

Basically, the calculation is the reverse of converting minutes to decimals.
In short, rather than dividing the minutes by 60, you multiply the decimal
degree by 60, and that gives you the conversion to MINUTES.

HERE'S AN EXAMPLE:

The conversion of 43.85 degrees, would be:

43 degrees stays the same; then 0.85 deg is multiplied by 60
= 51 minutes. So the complete conversion to degrees and minutes
is:

43 51' (MINUTES)

Guidelines
Again the basic rule is, multiply the decimal degree by 60.

Here
are a few more guidelines for conversions to use as cross checks:
.15 of a degree multiplied by 60 = 9 minutes
.166 of a degree multiplied by 60 = ~ 10 minutes

or .50 of a degree multiplied by 60 = 30 minutes
.70 of a degree multiplied by 60 = 45 minutes
.95 of a degree multiplied by 60 = 57 minutes
1.00 of a degree multiplied by 60 = 60 minutes/1Whole Degree